pdfium: Import PDF with unloaded images.

Change-Id: I5e4a16ff38b9643127ce16879b35f456c13bcff8
Reviewed-on: https://gerrit.libreoffice.org/56268
Reviewed-by: Ashod Nakashian <ashnakash@gmail.com>
Tested-by: Ashod Nakashian <ashnakash@gmail.com>

1 files changed, 13 insertions, 21 deletions

diff --git a/sd/source/filter/pdf/sdpdffilter.cxx b/sd/source/filter/pdf/sdpdffilter.cxx
index 8ca237fd6345..62dbc3964f35 100644
--- a/sd/source/filter/pdf/sdpdffilter.cxx
+++ b/sd/source/filter/pdf/sdpdffilter.cxx
@@ -102,37 +102,29 @@ bool SdPdfFilter::Import()
     // Rendering resolution.
     const double dResolutionDPI = 96.;
 
-    uno::Sequence<sal_Int8> aPdfData;
-    std::vector<Bitmap> aBitmaps;
-    if (vcl::ImportPDF(aFileName, aBitmaps, aPdfData, dResolutionDPI) == 0)
+    std::vector<std::pair<Graphic, Size>> aGraphics;
+    if (vcl::ImportPDFUnloaded(aFileName, aGraphics, dResolutionDPI) == 0)
         return false;
 
-    // Prepare the link with the PDF stream.
-    const size_t nGraphicContentSize = aPdfData.getLength();
-    std::unique_ptr<sal_uInt8[]> pGraphicContent(new sal_uInt8[nGraphicContentSize]);
-    memcpy(pGraphicContent.get(), aPdfData.get(), nGraphicContentSize);
-    std::shared_ptr<GfxLink> pGfxLink = std::make_shared<GfxLink>(std::move(pGraphicContent), nGraphicContentSize, GfxLinkType::NativePdf);
-    auto pPdfData = std::make_shared<uno::Sequence<sal_Int8>>(aPdfData);
-
+    // Add as many pages as we need up-front.
     mrDocument.CreateFirstPages();
-    for (size_t i = 0; i < aBitmaps.size() - 1; ++i)
+    for (int i = 0; i < aGraphics.size() - 1; ++i)
     {
         mrDocument.DuplicatePage(0);
     }
 
-    size_t nPageNumber = 0;
-    for (Bitmap& aBitmap : aBitmaps)
+    for (std::pair<Graphic, Size>& aPair : aGraphics)
     {
-        // Create the Graphic and link the original PDF stream.
-        Graphic aGraphic(aBitmap);
-        aGraphic.setPdfData(pPdfData);
-        aGraphic.setPageNumber(nPageNumber);
-        aGraphic.SetSharedLink(pGfxLink);
-        aGraphic.setOriginURL(aFileName);
+        const Graphic& aGraphic = aPair.first;
+        const Size& aSize = aPair.second;
+
+        const sal_Int32 nPageNumber = aGraphic.getPageNumber();
+        if (nPageNumber < 0 || nPageNumber >= aGraphics.size())
+            continue; // Page is out of range
 
         // Create the page and insert the Graphic.
-        SdPage* pPage = mrDocument.GetSdPage(nPageNumber++, PageKind::Standard);
-        Size aGrfSize(OutputDevice::LogicToLogic(aGraphic.GetPrefSize(), aGraphic.GetPrefMapMode(),
+        SdPage* pPage = mrDocument.GetSdPage(nPageNumber, PageKind::Standard);
+        Size aGrfSize(OutputDevice::LogicToLogic(aSize, aGraphic.GetPrefMapMode(),
                                                  MapMode(MapUnit::Map100thMM)));
 
         // Resize to original size based on 72 dpi to preserve page size.